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Behaviors of emission wavelength shift in AlInGaN-based green laser diodes

  • Sung Nam Lee*
  • , H. Y. Ryu
  • , H. S. Paek
  • , J. K. Son
  • , Y. J. Sung
  • , K. S. Kim
  • , H. K. Kim
  • , H. Kim
  • , T. Jang
  • , K. H. Ha
  • , O. H. Nam
  • , Y. Park
  • *Corresponding author for this work
  • Samsung
  • Inha University
  • Tech University of Korea

Research output: Contribution to journalJournal articlepeer-review

Abstract

InGaN quantum-well (QW) green laser diodes (LDs) with an emission wavelength of 483.7 nm were characterized by controlling the injection pulsewidth. The emission wavelength of LDs showed a large blueshift (> 20 nm) of spontaneous emission peak with increasing injection current below the threshold current. The huge blueshift was ascribed to the deep In localization states and the strong piezoelectric field in the green InGaN QW structure with higher In contents than conventional violet/blue InGaN QWs. However, the lasing wavelength of LDs was slightly redshifted by increasing the injection pulsewidth due to the thermal heating effects.

Original languageEnglish
Pages (from-to)870-872
Number of pages3
JournalIEEE Electron Device Letters
Volume29
Issue number8
DOIs
StatePublished - 2008.08

Keywords

  • Gallium compounds
  • GaN
  • Laser diode (LD)
  • Light-emitting diodes (LEDs)
  • Quantum well (QW)
  • Semiconductor lasers

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